Which type of underwear is best for males?

[SoCal2023]

As others have said so well, it depends upon the occasion. Also as stated, it depends upon the weather. I’ve found that out first hand. When living in Southern California where the weather is usually warm, you can wear the same style all year. Where I live now, the temp varies from 22 degrees F to 122 F. The g-string underwear worn when it’s 122 may not be as comfortable when it’s 22. As others said, it all comes down to comfort for me.